## Conjecture that States that Numbers (4^n – 1)/3 Where N is Odd Are Divisible by Poulet Numbers

**Authors:** Marius Coman

In this paper I conjecture that any number of the form (4^n – 1)/3 where n is odd greater than 3 is divisible by a Poulet number (it is known that any number of this form is a Poulet number if n is prime greater than 3; such a number is called Cipolla pseudoprime to base 2, see the sequence A210454 in OEIS).

**Comments:** 2 Pages.

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### Submission history

[v1] 2017-03-18 04:21:30

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